I honestly don't think that would change the conclusion. rubys.github.io/roundhouse/p… shows the meta-programming free version of the blog application in Ruby, C (clean or otherwise) would be more. intertwingly.net/blog/2026/0… goes into more depth.

What I have is a compiler, built by Claude under my guidance. The compiler is an executable, deterministic, uses no tokens. The compiler can be compiled to wasm and run in your browser: rubys.github.io/roundhouse/p…

Not Claude loops, but take a look at this page: rubys.github.io/rubyconf-202… ; where you see a programming language you like, click on that name and you will download a tgz with a README. Try it.

In the future, frameworks will become languages. These days every language has a socket library, primitive HTTP support etc. A compiler that understands models, views, and controllers can do more. I picked Rails, but I hope others follow.

> その意味でRailsこそが仕様だと言っていると読み取った Exactly. Go to github.com/rubys/roundhouse and look at the "about". You will see it in the image below:

Try different apps and different targets on rubys.github.io/roundhouse/p… ; the expansion is significant. Whether human or LLM, it is easier to reason about and make correct code that is an order of magnitude smaller. Context windows matter.

I go the other way. SQL is the best example. Sure you don't need a database, you can generate the code to replace it, but why? Databases are battle tested and optimized.

Some benchmarks: rubys.github.io/roundhouse/b…

Previous Deccan Ruby or next one? What if you could keep the language and replace the runtime? Explore Blog and Campfire here: rubys.github.io/roundhouse/ ; try Elixir: rubys.github.io/roundhouse/b…

Both LLMs and humans have context windows. Additionally when you write in a lower language you are specifying "how" not "what". My thesis is that Rails is like SQL, and what it needs is to be treated as a language.

I might be wrong, but I would think that enterprises would be interested in throughput and memory usage. Roundhouse (and perhaps Spinel) might not be ready for production just yet, but I would think would be worth watching.

I'm hoping that the topic of Spinel comes up. :-)

A PR against Campfire, merged by @rosapolis, and Campfire on Spinel now passes 300 out of 300 model and controller tests: intertwingly.net/blog/2026/0…

Roundhouse Released: intertwingly.net/blog/2026/0…

Hi! Questions, Discussions, Issues, Pull Requests are all welcome. I'll confirm that Roundhouse is "AI Slop" (as, for that matter, Spinel - ask Matz). The project is much bigger than a team could have handled previously, now it is something one person can do.

Spinel demo in a tweet: curl -sL rubys.github.io/roundhouse/c… | tar xz cd campfire-docker docker build -t campfire . docker run --rm -p 3000:3000 -v campfire-data:/app/storage campfire intertwingly.net/blog/2026/0… intertwingly.net/blog/2026/0… cc: @yukihiro_matz